<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<p >使用post方式提交</p>
<form action="study.php" method="post">
    <input type="text" name="user_name" />
    <input type="submit" value="提交" />
</form>

<p>------------------------------------------------------</p>
<p >使用get方式提交</p>
<form action="study.php" method="get">
    <input type="text" name="user_name" />
    <input type="submit" value="提交" />
</form>

</body>
</html>